Open Water Data

Roosevelt State Beach

Half Moon Bay, California, United States

Data Sources
  • E. coli
    FAIL 98mpn (single) Tue, Nov 12, 2024
  • Enterococcus
    FAIL 52mpn (single) Tue, Oct 15, 2024
  • Water Quality Status
    Passed tests Thu, Jul 10, 2025 at 9:41pm
  • Air Temperature
    16.2°C / 61.2°F (air) Tue, Jul 15, 2025 at 4:00pm
  • Wind
    15.1 - 17.6km/h SW 232° Tue, Jul 15, 2025 at 4:00pm
  • Overcast
    Overcast Tue, Jul 15, 2025 at 4:00pm
  • Precipitation
    0mm Tue, Jul 15, 2025 at 4:00pm
  • Air Visibility
    16km Tue, Jul 15, 2025 at 4:00pm
  • Humidity
    88% Tue, Jul 15, 2025 at 4:00pm

Photo by Fritzcat

Roosevelt State Beach is a very pretty white sand beach located on Young Avenue off of Highway 1 in San Mateo County. It is one of the many Half Moon Bay beaches and offers beautiful views of the water, especially from up on the hiking trails. It is adjacent to Dunes Beach, and both are accessible from the same parking area where you will pay a $6 entrance fee (however this is not really enforced during winter months). Bring a jacket as it can get windy. There are no pets or fires allowed on the beach, but it is a great secluded spot for surfers who want to catch some waves or beachgoers who are seeking solace. A horse trail parallels Coastside Trail from Roosevelt Beach to Francis Beach. While in the state parks, horses are restricted to the designated horse trail and are not permitted on State Beaches. Restrooms are available.

The description above was copied from or heavily based on Swim Guide, with permission.

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